Answer:
18.3
Step-by-step explanation: Here i'll give you my notes for finding original price
1. make the percent into a decimal
2. subtract the decimal by 1
3. divide the number you just got and the decimal you got from the first step
Answer:
20%
Step-by-step explanation:
With those changes, the fraction is multiplied by ...

That is, the value of the fraction is decreased by 20%.
For every 9 kids 5 are girls
there are 3 sets of 9
so 5 x 3 = 15
there are 15 girls
Answer:
50 in total, 45 were eaten
Step-by-step explanation:
If there's only 10% left and 10% is 5 cookies, then that means for every 10% is 5 cookies so 90 x 5 = 45
Answer:
false all the quadratic equations cannot be solved by factorising there is also graphical method to get the solution